ASN.1 Language Support for Visual Studio Code

This extension adds IntelliSense-like editing and binary message decoding for Abstract Syntax Notation One (ASN.1). For example:

• Syntax highlighting and coloring.
• Auto-completion.
• Schema validation and error highlighting.
• Folders/Workspaces support (ability to group multiple ASN.1 files together as one unit).
• Go To Definition.
• Find All References.
• Rename Identifier.
• Document Formatting.
• Folding Ranges.
• Code Snippets.
• Decode and View ASN.1 binary encodings (decode from .der, .ber, .oer, .coer, .per, .uper, .jer files).

Usage

Open an existing ASN.1 schema file or create a new one (the file should have the .asn extension) and start editing.

Requirements

• .NET Core Runtime (3.1 or higher)
• Visual Studio Code (1.34 or higher)

Known Issues

The extension might not work properly in Ubuntu if you installed the .NET Core Runtime from a snap. Add /snap/dotnet-sdk/current to your PATH instead of creating an alias as suggested in the documentation.

If the extension issues a Launching server using command dotnet failed error, you migth try installing the OmniSharp extesion and relaunching the editor.

Contact

ASN1Vcx is a free tool in beta stage, we'd appreciate your feedback.

Authored by OSS Nokalva, Inc. https://www.oss.com/

Contact us at: https://www.oss.com/company/contact-us.html